Microsoft announces quantum computing breakthrough with new Majorana 1 chip
Researchers have spent 17 years working on this milestone.
The Defense Advanced Research Projects Agency (DARPA) has now selected Microsoft as one of two companies that will advance to the final phase of its Underexplored Systems for Utility-Scale Quantum Computing (US2QC).
The moment I read this, my first thought was, DOGE probably fired everyone involved in this program, and said they just saved American citizens $99999 trillion dollars by doing it.
DARPA is always cost a lot of money. Wouldn't they the ones that try to investigative psychic powers were real? Oh and for a while they were trying to develop a perpetual motion machine.
Of course in retrospect that looks stupid, but if they'd ever succeeded in building a perpetual motion machine they would have made all their money back and then some. So it isn't immediately apparent that they will have saved anyone any money. They've just not spent the money, which is not the same thing at all.
The engineers spun it up, and it asked if they wanted to back up their files to OneDrive.
Sorry making sure that prompt happens uses up all my qbits, I can't do anything else.
Let's hope the chip doesn't disappear mysteriously like its namesake!
Why not call it Marihuana right away?
The next one will be called Vulvana.
Can it run Doom?
As long as you don’t observe it.
Oh you
If not it will soon. Maybe even 2 copies at the same time
Microsoft has outlined its research in a peer-reviewed paper published today in Nature,
https://www.nature.com/articles/s41586-024-08445-2
explaining how its researchers were able to create the topological qubit. Microsoft has helped create a new material made from indium arsenide and aluminum, and it has placed eight topological qubits on a chip that it hopes can eventually scale to 1 million.
majorana particle at wiki ...
Microsoft isn’t using electrons for the compute in this new chip; it’s using the Majorana particle that theoretical physicist Ettore Majorana described in 1937.
Ok now i'm gonna need an explain-like-i'm-not-a-quantum-scientist on what a 'topological transistor' is, and what it uses instead of electrons for its compute (and, like, what is the significance?)
Oh man I'll try, but I can't make any promises ...
Modern particle physics breaks particles down into two groups: Dice that are weighted (bosons) and Dice that aren't weighted but also aren't fair (fermions).
Bosons always roll the same number, because they're weighted.
Fermions always roll numbers, but we have no clue how many sides they have, or what numbers they can even roll because they change each time we roll them.
Classical Computers ignore this problem. They just count the number of dice they have, and are really really good at rolling precise amounts of dice and putting them into specific labelled jars. Their math works by carefully keeping these jars organized, and are limited by how quickly and accurately the CPU can organize amounts of dice.
It turns out if you roll a set of dice enough times, no matter what set of dice you use as long as they are random, you eventually wind up with a similar looking "standard distribution" of probabilities. Quantum computers let us zero out the dice to a fixed starting position, kind of like zeroing out a scale, and then we can use that to make calculations. This process is very sensitive and difficult and has a lot of scaling issues.
Enter Anti-Dice. Anti-Dice are the polar opposites of existing Dice. They are just like all the other particles but they have their numbers printed upside down, and their shapes are inverted.
A Majorana particle is a particle that takes this metaphor even Further BEYOND!!! It is a type of Fermion (dice that we can roll and will give us random numbers instead of the same number each time), but whenever we roll a Majorana particle it turns into its own Anti-Dice. This is a really cool concept that Microsoft is using here as a proof of concept to make a quantum computer that is easier to scale up, because now if we roll say a bunch of 6s and a bunch of -6s, we know it's actually supposed to be the same number because of how Majorana particles are defined, and we can theoretically use this cheaper and easier method to scale up a quantum chip.
to most people (including myself, who did take college level modern physics. course), explaining the standard model of elementary particles, is way too high of a level regardless.
its like being given scifi names and terminology, and then suddenly finding out theyre real.
Lmao, yea I think they're kind of playing a game with language here.
After doing some reading of various explanations, what they mean when they say they aren't using electrons for computation is basically that the 'thing' they're measuring that dictates the 'state' of the transistor is a quasi-particle..... but that particle is only observed through the altered behavior of electrons (i guess in the case of the majorana particle, it appears as two electrons gathered together in synchrony?)
So the chip is still using electrons in its computation in the same say as a traditional transistor - you are still sending electrons into a circuit, and the 'state' of the bit is determined by the output signal. It's just that, in this case, they're looking for specific behavior of the electrons that indicate the presence and state of this 'qbit'
That is just my layman's understanding of it
i tried marjorana once.
Did you inhale?
oh yeah, got zooted
No, I did not inhale.
Not sure what to make of this, they've got the potential to put a million qubits on a chip, but there's only 8...
And others have had quantum computers for a while now... so... 🤷🏼♂️
Still a breakthrough for them, so still nice to hear. Yes its Microsoft, but its still nice to see progress in research.
Somehow advanced quantum computing ends up with a steampunk aesthetic.
Fuck no! Keep Clippie software only! And keep it in the recycling folder!
